The critical angle for light going from medium X into medium Y is θ. The speed of light in medium X is v. The speed of light in medium Y is The critical angle for light going from medium X into medium Y is θ. The speed of light in medium X is v. The speed of light in medium Y is November 15, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 26 - Geometrical Optics , Facebook Messenger WhatsApp Share this:TwitterFacebook Related